Richard Feynman talks about light
sdfhsfh4 HN recommenders · recommended in 4 months, 2018-2025
1.8M views · 19 years ago · explainer · evergreen
A PBS clip in which Richard Feynman explains the strange nature of light and electromagnetic radiation. He conveys how little of it we actually see and how radio waves are present everywhere.
Recommended as an entertaining, accessible way to get a feel for light and electric fields.
1:06:50HD Feynman: FUN TO IMAGINE complete (with optional Chinese subtitles)
Christopher Sykes
712K views • 6 years ago
9:01Feynman: Take the world from another point of view (1/4)
Aaron Scher
1.5M views • 18 years ago
1:06:50The complete FUN TO IMAGINE with Richard Feynman
Christopher Sykes
5.9M views • 8 years ago
1:35:39Horizon: Richard Feynman - No Ordinary Genius (full version)
Tinkerin' Thinkers
664K views • 15 years ago
7:41Richard Feynman: Magnets and Why Questions
RichardFeynmanLove
26K views • 16 years ago
28:34But why would light "slow down"? | Visualizing Feynman's lecture on the refractive index
3Blue1Brown
2.9M views • 2 years ago
7:07Feynman: What things really are like FUN TO IMAGINE 1
Christopher Sykes
747K views • 17 years ago
7:33Richard Feynman. Why.
firewalker
5.5M views • 14 years ago
4:43Richard Feynman Fire
nebulajr
758K views • 17 years ago
0:55Richard Feynman on hungry philosophers (or do we see objects or only their light)
Zero
272K views • 17 years ago
55:55Richard Feynman - The.Character.of.Physical.Law - Part 2 (full version)
Tinkerin' Thinkers
638K views • 15 years ago
52:04Lecture by Douglas Hofstadter: Albert Einstein on Light; Light on Albert Einstein
Uppsala universitet
23K views • 8 years ago
7:33Feynman: Magnets FUN TO IMAGINE 4 But see NEW UPDATED file at https://tinyurl.com/ycphc432
Christopher Sykes
1.6M views • 17 years ago
7:33Richard Feynman Magnets
nebulajr
999K views • 17 years ago
7:35Feynman: Magnets (and Why?) FUN TO IMAGINE 4/ higher quality version!
Christopher Sykes
359K views • 8 years ago
5:37Feynman: Knowing versus Understanding
TehPhysicalist
2.7M views • 14 years ago
9:47Feynman: Mathematicians versus Physicists
TehPhysicalist
882K views • 14 years ago
56:04Richard Feynman - The.Character of Physical Law - Part 1 The Law of Gravitation (full version)
Tinkerin' Thinkers
1.4M views • 15 years ago
1:44Richard Feynman: The Beauty of the Flower
FreeScienceLectures
222K views • 19 years ago
1:00:18Quantum Fields: The Real Building Blocks of the Universe - with David Tong
The Royal Institution
6.9M views • 9 years ago
6 comments from Hacker News
I'm sure a lot of people here have already seen this, but for those who haven't I highly recommend you watch this video of Feynman explaining light, ▶ this video He had an amazing ability to make physics fun and entertaining. I could listen to him talk all day.
Richard Feynman gets very excited about this very fact, that at any point it has ALL of the radio waves, amongst other electromagnetic radiation, that just has to be tuned in or focussed on. ▶ this video
Oh, but you can see past events while wielding (or not wielding) a time crystal. Vision is far out: ▶ this video
Let's try to work the problem in a way that avoids pedantry, just for a moment. This is one of my favorite PBS clips from the 80's in which Richard Feynman explains how strange the nature of light and by extension all of electromagnetic radiation. ▶ this video If you listen carefully, you notice that he never talks about wave/particle duality (because he wasn't giving a classroom lecture). What he does talk about is an electric field that waves slosh around in, and that something "elaborate and complicated" is going on at a deeper level. That's what I'm on about, if you were pressed to explain it so that a bright child would get it, how would you do that?
The potential is obvious once you really start to grasp the reality of the electric field and its properties. (A favorite Feynman vid to give laymen a taste: ▶ this video ) I don't see how any worthwhile possibilities can be realized at the amateur level however given just two of the restrictions I pointed out in a sibling thread...
I don't think that's what the poster meant. I think it was probably more along the lines of how you experience e.g. 'light' vs. what it actually is : ▶ this video (The vast majority of light is effectively invisible to you.)